286 citations · 653 across the 15 of their papers we have counts for
6 papers · 1 filter
Observation of quantum states without a semiclassical equivalence bound by a magnetic field gradient
B. Schüler, M. Cerchez, Hengyi Xu +4
Resonant transmission through electronic quantum states that exist at the zero points of a magnetic field gradient inside a ballistic quantum wire is reported. Since the semiclassi…
Correction factor in non-diffusive Hall magnetometry
M. Cerchez, T. Heinzel
It is demonstrated how the correction factor alpha used in Hall magnetometry of localized magnetic field profiles depends on the sample geometry and on the electron mean free path,…
Quantized magnetic confinement in quantum wires
A. Tarasov, S. Hugger, Hengyi Xu +6
Ballistic quantum wires are exposed to longitudinal profiles of perpendicular magnetic fields composed of a spike (magnetic barrier) and a homogeneous part. An asymmetric magnetoco…
Magnetic barrier induced conductance fluctuations in quantum wires
S. Hugger, Hengyi Xu, A. Tarasov +5
Quasi-ballistic semiconductor quantum wires are exposed to localized perpendicular magnetic fields, also known as magnetic barriers. Pronounced, reproducible conductance fluctuatio…
Influence of magnetic field offsets on the resistance of magnetic barriers in two-dimensional electron gases
S. Hugger, M. Cerchez, H. Xu +1
Magnetic barriers in two-dimensional electron gases are shifted in B space by homogeneous, perpendicular magnetic fields. The magnetoresistance across the barrier shows a character…
Effect of edge transmission and elastic scattering on the resistance of magnetic barriers
M. Cerchez, S. Hugger, T. Heinzel +1
Strong magnetic barriers are defined in two-dimensional electron gases by magnetizing dysprosium ferromagnetic platelets on top of a Ga[Al]As heterostructure. A small resistance ac…